Question

f(w) = 2w^3 - 5. Let z = 2. What is f(z)?

Answer 1

Answer:

13

Step-by-step explanation:

f ( w ) = 2w^3 - 5

f ( z ) = 2z^3 - 5

Let z = 2

f ( 2 ) = 2 ( 2 )^3 - 5

         =2 ( 8 )-5

          =18-5

           =13  

Answer 2

Answer:

11

Step-by-step explanation:

f ( w ) = 2w^3 - 5

f ( z ) = 2z^3 - 5

Let z = 2

f ( 2 ) = 2 ( 2 )^3 - 5

        =2 ( 8 )-5

         =16-5

          =11